Home / 68,108,239.20-102,162,358.80-64,749,007.20

Finding the Fourth Proportional to 68,108,239.20, 102,162,358.80 and 64,749,007.20

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Solution

The fourth proportional to 68,108,239.20, 102,162,358.80 and 64,749,007.20 is: 97,123,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,108,239.20 : 102,162,358.80 = 64,749,007.20 : x
  2. Step 2: Convert to fraction form
    68,108,239.20/102,162,358.80 = 64,749,007.20/x
  3. Step 3: Cross multiply
    68,108,239.20x = 102,162,358.80 × 64,749,007.20
  4. Step 4: Simplify right side
    68,108,239.20x = 6,614,911,305,510,183
  5. Step 5: Solve for x
    x = 6,614,911,305,510,183/68,108,239.20
  6. Step 6: Final answer
    x = 97,123,510.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.